Is there such a filesystem available?  It seems like it wouldn't be too hard to 
implement...  Basically do things on a block by block basis.  Store md5 of a 
block in the table, and when writing a new block, check if the md5 already 
exists and then point the new block to the old block.  Since md5 is not 
guaranteed unique, might need to do a diff between the 2 blocks and if the 
blocks are indeed different, handle it somehow.  

When modifying an existing block that has multiple pointers, copy the block and 
modify the new block.  

I know I'm oversimplifying things a lot, but something like this could work, 
no?  Would be a great filesystem to store backups on, or things like vmware 
volumes... 

Russ
Sent from my Verizon Wireless BlackBerry
_______________________________________________
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos

Reply via email to